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Math B Regents Exam Questions by Type - Multiple Choice Page 9
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1
63. The expression is equivalent to
5−
13
[A]
5 + 13 [B]
12
5 +
−
[C] 5 + 13 [D] 5 +
8
−
13
12
13
8
64. The accompanying graph shows the heart
rate, in beats per minute, of a jogger during a
4-minute interval.
66. Which graph represents the solution set of
2
x −x− 12 < 0?
[A]
[B]
[C]
[D]
67. Which equation states that the temperature, t,
in a room is less than 3° from 68°?
[A] |3 - t| < 68 [B] |68 + t| < 3
[C] |68 - t| < 3 [D] |3 + t| < 68
68. Which relation is a function?
What is the range of the jogger's heart rate
during this interval?
[A] 0-110 [B] 1-4
[C] 0-4 [D] 60-110
65. The effect of pH on the action of a certain
enzyme is shown on the accompanying graph.
What is the domain of this function?
[A] 4≤
y ≤13
[B] x ≥ 0
[C] 4≤
x ≤13
[D] y ≥ 0
2
2 2
[A] x = y + 1 [B] x + y =16
[C] y
= sin x [D] x = 4
69. A monitor displays the graph y = 3sin 5x.
What will be the amplitude after a dilation of
2?
[A] 5 [B] 10 [C] 6 [D] 7
70. The amount of juice dispensed from a
machine is normally distributed with a mean
of 10.50 ounces and a standard deviation of
0.75 ounce. Which interval represents the
amount of juice dispensed about 68.2% of the
time?
[A] 9.75-10.50 [B] 9.75-11.25
[C] 10.50-11.25 [D] 9.00-12.00
71. What is the sum of
3
x − 3
[A] 0 [B] 1 [C]
x
and
3− x
?
x + 3
x − 3
[D] −1